Burger King Corp. said Wednesday it is cutting the amount of sodium in its kids meals and promoting menu combinations with less than 650 calories as part of a push to emphasize nutrition at its fast-food chains.

The Democratic National Convention opened Monday in Denver. Next week, the Republicans get underway in St. Paul. And marketers seeing a chance to reach tens of thousands of delegates, government and party officials, volunteers and spectators are putting on their party hats, too.